Answer:

Step-by-step explanation:
The Exponential Product rule tells us that...

Therefore,
.
Therefore, 
10
20
30 there u go
that the rounding
Answer:
30
Step-by-step explanation:
You can use the triangle area theorem-
15x4(/2)=30
So you would multiply the length times width!
Answer:
ab - ac + db - dc
Step-by-step explanation:
you distribute the variables inside the parenthesis